Detector 43RML000 is a multi-criteria detector combining the detection modes of the rate-of-rise detector 43RCS000 and the optical smoke detector 43RFU000, and is therefore particularly suited to applications where early fire detection must be ultra-reliable (hotels, museums, etc.). The detector triggers the alarm if the smoke or temperature threshold is exceeded; plus, if a sharp rise in temperature occurs, the smoke detection sensitivity is set to its maximum level. Microprocessor-controlled digital signal analysis. Low-profile design. Light indications via 2 LEDs which guarantee 360° visibility. Status indication every 8 seconds. Approved to EN 54-5 and EN 54-7.